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<h1>Your file system doesn't support User Defined Attributes or they are not enabled</h1>
<p>Information below will help you to find whether your file system supports User Defined Attributes:</p>
<ul>
    <li>In <b>Linux</b>, the <b>ext2</b>, <b>ext3</b>, <b>ext4</b>, <b>JFS</b>, <b>Squashfs</b>, <b>Yaffs2</b>, <b>ReiserFS</b>, <b>XFS</b>, <b>Btrfs</b>, <b>OrangeFS</b>, <b>Lustre</b>, <b>OCFS2</b> 1.6 and <b>F2FS</b>
        support User Defined Attributes.
        <p><i>Enabling extended attributes on Linux</i></p>
        <p>Go to /etc/fstab and add "user_xattr" to the options section of the line regarding the file-system you'd like to enable extended attributes on. Such a line might look like:</p>
        <p><i>/dev/sda1  /               ext4    errors=remount-ro,user_xattr   0       1</i></p>
    </li>
    <li>In Windows only <b>NTFS</b> supports User Defined Attributes</li>
    <li>In FreeBSD only <b>UFS2</b> supports User Defined Attributes</li>
    <li>In Mac OS <b>HFS+</b> supports User Defined Attributes</li>
    <li>Solaris version 9 and later allows files to have "extended attributes"</li>
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